Gas mileage down to 19 from 27, hard brake pedal below 15 degrees F, AT won't shift below 10 degrees F. Is this a bad vacuum hose from the power brake booster? Moisture in the brake booster check valve? How do I diagnose a bad check valve? I can't find a diagram of where the brake booster vacuum hos...

Solved, I think. RSPI wins the prize. The bracket that holds the hose from the turbo to the PCV oil separator was between the manifold and the gasket instead of between the bolt head and the manifold. However yesterday when I read the codes again, I left the key on in the ignition and now will have ...

Yes, I pulled the manifold and used a new gasket. It is supposed to get up to 40 degrees on Saturday so I may wait until then to work on it again. Keep the ideas coming! I will take it all apart, except the manifold, and start over.

I replaced knock sensors, cleaned Throttle Body and Idle Air Control. Now it cranks, starts and dies, if I give it gas it revs, pops and dies when I let up on the accelerator. Did I forget something?

94 855T 109K 94 854T 303K 89 744T 193K I just bought a '94 850 Turbo wagon; it was a great price, I have another '94 850T that has over 300K miles and is still running strong, I can swap parts between them to help diagnose problems with buying something I don't need to really replace. I read all cod...

'94 855 Turbo 109K just purchased '94 854 Turbo 303K '89 744 Turbo 193K I just picked up a 94 855T with only 109K miles and am getting ready for a road trip to TX,FL, MO then back home to IL. I have A/C lights blinking so I pulled all codes in B1 then cleared them and one doesn't go away. 126, passe...